Dump-wagon.



PAT ENTED OCT. 25, 1904.

T. R. MOKNIGHT.

DUMP WAGON. APPLIOATION FILED JULY 27,1904.

4 SHEET-B-SHBBT 1.

N0 MODEL.

no MODEL.

T. R. MQKNIGHT. DUMP WAGON.

APPLICATION FILED JULY 27,1904- h [1i llnl PATENTED OCT. 25, 1904 4 SHEETS-SHEET 2.

No. 773,093.. PATENTED 00125, 1904;

' Y T. R. MoKNIGHTL DUMP WAGON. APPLICATION mum JULY 27,1904.

no MODEL.

4 SHEETS-SHEET 8.

UNITED STATE-s Patented October '25, 1904. I

PATENT OFFICE.

WESTERN WHEELED SORAPER A CORPORATION OF ILLINOIS.

COMPANY, OF AURORA, ILLINOIS,

DUMP-WAGON.

' SPEGIFICATION fOrming part of Letters Patent No..7 73,093, dated October 25, 1904.

"' Application filed July 27, 1904. Serial No 218,394. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS R. MOK IGHT, a citizen of the United States, and a resident of Aurora, in the county of Kane and Stateof Illinois, have invented certain new and use;

ful Improvements in Dump-Wagons, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to dump-wagons; and

its principal object is to provide a new and improved means for suspending the swinging doors from the wagon-body in such way that when the doors are allowed to open to dump the load the outer edges of the doors will swing outward and upward around and outside of the lower edges of the sides of the wagon-body, so as to insure perfect dumping of the load. c

To this end my invention consists, broadly,

in applying to said doors a curved bar or loop,

which is preferably formed of steel or suitable material and which is secured to the doors in such a way as to extend from the outer edge of the door and engage a suitable bearing mounted in the side of the wagon-body.

My invention also has for an object the improving of dumping-wagons in sundry details hereinafter .set forth.

In the accompanying drawings, Figure 1 is, Fig. 2 is a a top or planview of the wagon. V 7 vertical section on line 2 2 of Fig. 1 Fig. 3 is a rear end view of the wagon with a part of the end removed to'show the construction; and showing the doors closed. Fig. 4 is any end view of the wagon, showing the doors open in the position in which they normally hang when-allowed-to freely drop. Fig. 5 is an enlarged detail,'being an isometric view of one of the plates mounted in the side of the wagon-body to support the roller-bearing.

' Fig. 6 is an enlargeddetail, being a side view of the pawl-and-ratchet mechanism for opening and closing the doors.m Fig. 7 is an enlarged detaihbeing a top or plan view of the parts shown in Fig. 6; and Fig. 8 is a crosssection showing a modification of the form of the curved bars or loops. and adifi'erent method of attaching the lifting-chains to thedoors.

a complete and- Referring' to-the drawings, 9 indicates a wagon-body, consisting of sides 10, front and end boards 11 12, and swinging bottom doors 13 14. The wagon-body is. mounted in any approved way upon wheels 15 16. The side- I boards 10 are provided .with forward extensions'l7, extending forwardover the front wheels 15 and supporting a seat 18.

19 indicates curved bars or loops, which, as

best shown in Figs. 3 and'4, 'are of a general U-shaped construction. In the form of construction shown in Figs. 3 and 4 the inner ends of the loops 19 are bolted to the tops of the doors 13 14, respectively, on the inside of the wagon, and the other ends of the loops 19 pass around outside of the outer edges of the doors 13 14 and are secured "below the doors by being bolted to angle-irons 20, which are bolted or otherwise appropriatelysecured to the bottoms of the doors 1314; The loops 19 pass through suitable slots or openings 21 in the sides 10 of the wagon-body; As is best shown in Figs. 1" and 2, there are two of these loops 19 upon eachside of the wagon, and this is the preferableconstruction, although, if needed, more or less of said loops could be used upon each side. I

Referring to Fig. 5, 22 indicates a plate which is-providedwith a bent-in portion 23. One ofthese plates is mounted upon each side of'each of the slots or openings 21, with the projection 23 inserted in said slot. The projection 23 is provided with a suitable opening 24. The plates 23 thus form bearings for rollers 25, which are journaled in the openings 24. The curved bars or loops 19 engage the rollers 25, which thus-form a bearing upon which the loops 19 movewhen the'doorsare' opened or closed-.

When the doors are allowed to drop, they swing into and remain normally in the position shown in Fig. 4, the loops 19 passing over and bearing upon the rollers 25.

It will be seen that the construction is such that in swinging into this position the outer edges of the doors will pass outward and upward around the lower edges of the side-boards and outside of the same substantially in the position shown in Fig. 4, and this is the position which they will assume if allowed to merely drop of their own weight. When, however, the wagon contains a load and the doors are allowed to open to permit the dumping of the load, there will be a side thrust upon the doors caused by the falling load, which will cause the doors to swing into the position shown in dotted lines in Fig. 4 while the load is being dumped. WVhen the load is emptied, the doors will swing again into substantially the position shown in Fig. 4 and normally hang in that position until the doors are closed by the mechanism hereinafter described.

Referring particularly to Figs. 1, 6, and 7, 26 indicates a shaft or pipe roller which is journaled in the projecting portion 17 of the side in any approved way, with its ends projecting out through the sides upon each side of the wagon, as is best shown in Fig. 1. 27 indicates chains one end of which is secured to the projecting ends of the shaft 26 in such a way as to be wound upon said shaft when the shaft is rotated, as hereinafter described. The chains 27 extend backward to substantially the center of the wagon-body proper and pass around rollers 28, which are mounted in suitable bearings 29 on the sides of the wagon in any well-known and approved manner, and thence passing through the sides of the wagonbody, through suitable openings therein, cross each other and are secured to the upper surfaces of the doors 13 14. near the inner edges thereof, as is best shown in Fig. 3.

Referring particularly to Figs. 6 and 7, 30 indicates a hand-lever which is keyed or otherwise secured to the shaft 26 and is provided with a pawl 31, which is operated by a bell-crank lever 32, pivoted upon the lever 30 and link 33. 34 indicates a ratchetwheel which is keyed or otherwise secured to the shaft 26 beside the lever 30 and is adapted to be engaged by the pawl 31. To rotate the shaft 26, so as to raise the doors, the lever 30 is lifted, the pawl sliding over the teeth of the ratchet-wheel 34. hen the lever is low ered, the pawl 31 engages the teeth of the ratchet-wheel 34 and rotates the same, rotating with it the shaft 26 and winding the chains 27 thereon until the doors are raised into their closed position. 35 indicates a lever which is pivotally mounted on the side extension 17 and carries pivoted upon it a pawl 36. These parts normally rest in the position shown in Fig. 6, with the pawl 36 engaging the teeth of the ratchet-wheel 34, preventing its backward rotation and holding the doors in the position to which they have been raised by the operation of the hand-lever 30. The centers upon which the pawl 36 and lever 35 are pivoted are in such relation to the teeth of the ratchet-wheel that, as is shown in Fig. 6, the pressure of the ratchet-wheel 34 against the pawl 36 will not lift the same. WVhen it is desired to dump the load, the hand-lever 35 is raised until the center upon which the pawl 36 is mounted passes upward of the line of force exerted by the ratchet-wheel 34, whereupon by the pressure of the ratchet-wheel 34 the lever will be further lifted and the pawl 36 will drop, disengaging it from the teeth of the ratchet-wheel 34 and allowing the shaft 26 to freely rotate under the weight of the load to swing the doors open and discharge the load. YVhen the load is discharged, the lever 35 and pawl 36 are placed in the position shown in Figs. 6 and 7 by hand and the lever 30 operated to lift the doors. By the crossing of the chains 27, as shown in Figs. 3 and 4, when the doors are lifted into their closed position the action of the crossed chains is such as to prevent the doors 13 14 and the loops 19 from sliding outward under -the pressure of the load.

In the modification shown in Fig. 8 the wagon-body, with its end-boards, side-boards, and swinging doors, is the same as above described, said parts being indicated by corresponding numbers, as are also the rollers 25 and the parts in which they are mounted, the same description as heretofore given applying to all of said parts. 37 indicates the loops or curved bars, which in this construction are secured below the bottoms of the doors 13 14 and passing upward and outward around the outside edges of said doors curve upward and inward such a distance as to terminate inside of the wagon-body in a downward-projecting stop 38 at their inner ends. The curved portions of the loops or curved bars 37 engage with and bear upon the rollers 25 in the same manner as before, and the curve is substantially the same as above described, the difference being that the loop is an open one and does not extend inward and dowm ard, so as to be secured to the inner or upper surface of the doors, and is provided with stops 38, which engage the rollers 25 when the rollers are in their closed position in such a way as to prevent any further outward movement of the loops 3?, and hence prevent any outward sliding of the doors 13 14 when in their closed position. I n this case, as is shown in Fi 8, it is not necessary to cross the chains 2, and their inner ends may be secured near the inner edges of the doors, which are respectively upon the same side of the wagon body as the chains. \Vhen the doors in this modification are allowed to open, as above described, they will swing into and ultimately remain in the same position as is shown in Fig. 4, and under the side thrust of the load will temporarily swing into substantially the same position as the doors shown in dotted lines in Fig. 4.

That which I. claim as my invention, and desire to secure by Letters Patent, is

1. The combination with a wagon -body, and a door adapted to swing into and out of operative position under said wagon-body, of a traveling pivotal connection between the and a door adapted to swing into and out of operative position under said wagon-body, of a traveling pivotal connection between the outer edge of said door and said wagon-bodyand adapted to normally suspend said door with its outer edge outside of said wagonbody, substantially as described.

3. The combination with a wagon-body, and a door adapted to swing into and out of operative position under said wagon-body, of a traveling pivotal connection between the outer edge. of said door and said wagon-body and adapted to normally suspend said door with its outeredge outside of said wagonbody, and means for moving said door into, and retaining it in, its closed position until released, substantially as described.

4:. The combination with a wagon-body, a bearing on the side of said wagon-body, and a door adapted to'swing into and out of operative position under said wagon-body, of a ward to engage said bearing,

loop secured to said door and extending from the outer edge thereof upward and then insubstantially as described.

5. The combination with awagon-body, a bearing on the side of said wagon-body, and a door adapted to swing into and out of operative position under said wagon-body, ofa loop secured to said door and extending from the outer edge thereof upward and then inward to engage said bearing, and means for moving said door into, and retaining it in, its closed position until released, substantially as described.

6. The combination with a wagon-body, a.

bearing on the side of said wagon-body, and a door adapted to swing into and out of operative position under said wagon-body, of a loop secured to said door and extending from the outer edge thereof upward and then inward to engage said bearing, and means adapted to prevent said door from sliding outward when in its closed position, substantially as described.

7. The combination with a wagon-body, -a bearing on the side of said wagon-body, and a door adapted to swing into and out of operative position under said wagon-body, of a loop secured to said door and extending from the outer edge thereof upward and then inward to engage said bearing, means for mov ing said door. into, and retaining, it in, its closed position until released, and means adapted to prevent said door from sliding outward when in its closed position, substantially as described.

8. The combination with a wagon-body, a bearing on theside of said wagon-body, and a door adapted to swing into and out of operative position under said wagon-body, of a loop secured to said door and extending from the'outer edge thereof upward and then inward to engage said bearing, means for moving said door into, and retaining it in, its closed position until released, and a stop on said loop adapted to engage said bearing and to prevent said door from sliding outward when in its closed position, substantially as described.

9. The combination with a wagon-body, a

bearing on the side thereof, and a door adapted to swing into and out of operative position under said wagon-body, of a curved bar secured at one end to the door and extending ed to swing into and. out of operative position under said wagon-body, of a curved bar secured at one end to the door and extending from the outer edge of said door upward and then inward to engage said bearing, whereby when said door is allowed to drop the outer edge will pass outward and upward outside of said wagon-body and will normallyhang in said position, and means for lifting said door to close the bottom of said wagon-body and retain the same in place until released,sub stantially as described. 7

11. The combination with a wagon-body, and hearings in the sides of said wagon-body, doors hung below said wagon-body and adapted to be moved into their closed position with their inner edges meeting, and means for moving'said doors into, and retaining them in,. their closed position until released, of curved bars secured at one end to the doors and extending from the outer edges of said doors.

upward and then inward to engage said bearings, whereby when said doors are allowed to drop the outer edges thereof will pass outward and upward outside of said wagon-body and will normally hang in said position, sub-v stantially as described.

12. The combination with a wagon-body, a

slot in the side thereof, a roller journaled in said slot, a door adapted to be swung into and out of operative position below said wagonbody, and means for moving said door into its closed position, of a curved bar secured to said door and extending from the outer vedgethereof outward and upward, and then inward and upward, and .adapted to engage and move upon said roller, and means for pre ventlng said door from sliding out when in its closed position, substantially as described.

THOMAS H. MoKNIGHT. Witnesses: 1

F. O. \DILLON, WILLIAM DUDLEY FOULKE. 

